Adsorption and Kinetic Studies of Nickel(II) Ions onto Vermiculite based Ionite
Obid TursunmuratovSuyun KhushvaktovMurod JurayevBekchanov DavronbekNational University of Uzbekistan named after Mirzo Ulugbek, Tashkent, UzbekistanMukhtarjan MukhamedievNational University of Uzbekistan named after Mirzo Ulugbek, Tashkent, Uzbekistan
ABI
Abstract
Using vermiculite based ionite, the absorption efficiencies of Ni2+ ions from synthetic solutions were investigated. The effects of pH and initial concentration of Ni2+ ions their absorption capacity were investigated to optimize process conditions using pseudo-first and pseudo-second-order. The results obtained from the sorption of Ni2+ ions on vermiculite based ionite show the kinetic characteristics close to the pseudo-second order. The high Ni2+ ions sorption is attributed due to the the complexation of metal ions with −NH2 groups present in the absorbent, which results in the strong coordination bonds.
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